DR. ROCK CHEN CHUN LIU (MD) – Surgery Physician, NPI 1174601256
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
Provider Addresses for DR. ROCK CHEN CHUN LIU (MD)
27206 CALAROGA AVE STE 206
HAYWARD, CA 945454300
Phone: (510) 732-5731
Fax: (510) 732-5739
Type: Location
365 Hawthorne Ave Ste 101
Oakland, CA 946093115
Phone: (510) 465-5523
Fax: (510) 832-6061
Type: Location
3010 Colby St Ste 118
Berkeley, CA 947052059
Phone: (510) 486-0818
Fax: (510) 486-0819
Type: Location
Harrison Street, Chinatown, Oakland, Alameda County, California, 94607, United States
OAKLAND, CA 946123429
Phone: (510) 625-6262
Type: Mailing
45B, 1425, South Main Street, Walnut Creek, Contra Costa County, California, 94596, United States
WALNUT CREEK, CA 945965318
Phone: (925) 295-4000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 534 Open Payments records for all available years, with a total value of $470,597.
Total Amount is formed as General ($470,597) + Research ($0) + Ownership ($0) = $470,597.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($458,242).
Total Amount
$470,597
General + Research + Ownership
Payments
534
Total payment records
General Amount
$470,597
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $458,242 |
| Davol Inc. | $9,639 |
| Medtronic, Inc. | $1,388 |
| TELA Bio, Inc. | $565 |
| CONMED Corporation | $201 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-10-04
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20051004001112 | I | General Surgery | CA | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 69 | 64 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 58 | 58 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 53 | 47 | $0 |
| 49650 | Repair of groin hernia using an endoscope | 38 | 37 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 36 | 36 | $0 |
Insurance plans in this area (ZIP 94545)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| G A S T R O E N T E R O L O G Y | CA | |
| General Surgery | CA | |
| N E U R O S U R G E R Y | CA | |
| - | CA | |
| O B S T E T R I C S/ G Y N E C O L O G Y | CA | |
| P O D I A T R Y | CA | |
| - | CA | |
| E N D O C R I N O L O G Y | KS | |
| Qualified Audiologist | CA |
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